Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Occupant Detection / Data List.
(f) Read the Data List according to the display on the Techstream.
Body Electrical > Occupant Detection > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| FL Sensor Weight Information | Front left sensor weight information | Min.: -75.852 kg (-167.224 lb) Max.: 104.737 kg (230.903 lb) | Current value displayed | - |
| RL Sensor Weight Information | Rear left sensor weight information | Min.: -75.852 kg (-167.224 lb) Max.: 104.737 kg (230.903 lb) | Current value displayed | - |
| Total Weight Information | Total weight information | Min.: -151.704 kg (-334.447 lb) Max.: 209.475 kg (461.808 lb) | Current value displayed | - |
| Weight Forward and Rearward Difference | Weight difference between front and rear | Min.: -180.589 kg (-398.127 lb) Max.: 180.589 kg (398.126 lb) | Current value displayed | - |
| Airbag Total Weight | Total weight information for airbag system | Min.: -161.595 kg (-356.253 lb) Max.: 226.017 kg (498.277 lb) | Current value displayed | - |
| Belt Warning Total Weight | Total weight information for seat belt warning system | Min.: -155.001 kg (-341.716 lb) Max.: 219.400 kg (483.689 lb) | Current value displayed | - |
| VSC Status | Vehicle speed status | ON or OFF | ON: Vehicle speed valid | - |
| VSC Vehicle Speed | Vehicle speed | Min.: 0.00 km/h (0.00 mph) Max.: 327.67 km/h (203.61 mph) | Current value displayed | - |
| VSC Zero Point1 | Zero point for acceleration sensor 1 | Min.: -4.5952 m/s2 Max.: 4.5593 m/s2 | Current value displayed | - |
| VSC Zero Point2 | Zero point for acceleration sensor 2 | Min.: -4.5952 m/s2 Max.: 4.5593 m/s2 | Current value displayed | - |
| VSC Calibration Status | Vehicle stability control calibration status | Calibrated or Uncalibrated | Calibrated | - |
| VSC Assembly Information | Acceleration sensor assembly information | Reverse Position or Normal Position | Reverse Position or Normal Position | Displays a fixed value for each vehicle. |
| Yaw Rate/G Sensor Voltage Invalid Flag | Yaw rate and acceleration sensor voltage invalid flag | ON or OFF | ON: Valid | - |
| Yaw Rate/G Sensor Malfunction Flag1 | Malfunction flag for acceleration sensor 1 | OK or NG | OK | - |
| Yaw Rate/G Sensor Invalid Flag1 | Invalid flag for acceleration sensor 1 | ON or OFF | ON: Valid | - |
| Yaw Rate/G Sensor Malfunction Flag2 | Malfunction flag for acceleration sensor 2 | OK or NG | OK | - |
| Yaw Rate/G Sensor Invalid Flag2 | Invalid flag for acceleration sensor 2 | ON or OFF | ON: Valid | - |
| Yaw Rate/G Sensor Assembly Information | Acceleration sensor assembly information for occupant classification system | Unset, Reverse Position or Normal Position | Reverse Position or Normal Position |
|
| Passenger Detection(Airbag) | Passenger classification | OFF/Child, CRS1, CRS2, AF05 or AM50 | OFF/Child: Vacant or child is seated CRS1: Child restraint system is installed CRS2: Child restraint system is installed AF05: Adult is seated AM50: Adult is seated | - |
| Passenger Detection(Belt Warning) | Passenger detection for seat belt warning system | OFF, Baggage or ON | OFF: Seat is vacant Baggage: Seat is occupied by baggage ON: Seat is occupied | - |
| Driving Status | Driving status | Stop, Drive or Turn | Stop: Vehicle is stopped Drive: Vehicle is being driven straight Turn: Vehicle is turning | - |
| Passenger Buckle SW | Passenger side buckle switch | NG, Set or Unset | Set: Front passenger seat belt is fastened Unset: Front passenger seat belt is not fastened | "NG" will be displayed immediately after the engine switch is turned on. |
| The Number of DTCs | Number of DTC recorded | Min.: 0, Max.: 255 | 0 | The number displayed is the total current DTCs and history DTCs stored (excluding duplicates). |
Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) The following chart shows the status of the front passenger SRS items and passenger airbag ON/OFF indicator operation under each condition.
The passenger airb ...
Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The passenger side buckle switch circuit consists of the occupant detection ECU and passenger side buckle switch (front seat inner belt assembly RH). DTC B1771 is stored when a malfunction ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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